Liquid-meter.



E. L; BARNES.

LIQUID METER. APIELIOAHOK FILED 001-21, 1907.

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Patented Feb. 9, 1909.

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E. L. BARNES. LIQUID METER.

APPLICATION FILED .001. 21, 1907.

911,641 I I Patented Feb. 9, 1909.

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UNITED sTAtrEs PATENT FFICE.

EUGENE L. BARNES, or DETROIT, MICHiGAN, ASSIGNORTTO CENTRAL sTATIoNSTEAM COMPANY, or DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

LIQUIIiMETER.

Specification of Letters Patent. i

Patented Feb. 9, 1909.

Application filed. October 21, 1907. Serial No. 398,490.

To all whom it may concern:

Be it known that I, EUGENEvL. BARNEaa citizen of the United States ofAmerica, re-

siding atlDetroit, in the county of Wayne" and State of Michigan, haveinvented certain new and useful Improvements in Liqv uid-Meters, ofwhich the following is a specification, reference-being had therein tothe accompanying drawings.

The invention relates to liquid meters of that class in which the fluidto be measured is fed into a revoluble drum or cylinder, and is measuredby the alternate filling and discharging of compartments within saiddrum.

The invention consists in certain features of construction whereby ahigh degree of ac- 4 curacy is obtained with a simple mechanicalconstruction, all as more fully hereinafter set forth. V

In the drawings, Figure 1 is a section of the meter in the planeofrotation; Fig. 2 is a vertical central section in the plane of theaxis; Fig. 3 illustrates a modified construction of the inlet spout; andFig. 4 is a section at right angles to Fig. 3.

A is the drum or cylinder, which is provided at its opposite ends withtrunnions B journaled in suitable bearings, such as the roller bearingsC within an outer tank D.

E is an inlet pipe which enters through one of the trunnions B and isprovided with a downwardly extending discharge nozzle F, The, drum A isdivided into a plurality of compartments by partitions G extending theentire length of the drum and securedto the heads H thereof. The drum ispreferably formed of sheet metal, and the heads H are provided withbeads I, which form bearings: for the ends of the partitions G, whichare also preferably secured by soldering." 5

Each of the partitions G is preferably of the form shown, having aportion a thereof which extends radially, and is located near the axisof the drum, but so as to clear thenozzle F. Between the portion a andthe periphery of the drum the partition is bent to form an extension ofthe pocket, as indicatedatbandc,

J are discharge conduits connected to each of the partitions G at apoint intermediate the portion a and the periphery, preferably at anangle of intersection of the portions 72 and 0. This conduit J extendsto the periphery of the drum, and registers with an aperture therein,forming the discharge orifice,

but the partition is such that when the por- "tion a is arrangedverticallyibeneath the inlet nozzle F the discharge end of the conduit Jis above the level of the partition. The conduit J preferably extendsonly a portion of the length of the drum, but the area of its crosssection is sufficient to discharge therethrough the maximum amount ofliquid which is fed into the drum at any time.

7 With the construction as thus far described, when liquid is admittedthrough the conduit E it will be discharged through the nozzle Finto oneof the compartments. As the liquid rises in this compartment it willdisturb the balance of the drum, and cause the latter to rotate untilthe portion a, of the partition G, is passed beneath the nozzle F andthe liquid from said nozzle is directed into another compartment. At thesame time, the rotation of the drum will cause'the discharge conduit Jin one of the compartments to be lowered and permit the passagetherethrough of the liquid. Thus the disturbance in the balance of thedrum is due on the one hand to the filling of one of the compartments,and on the other hand to the discharging of the liquid from thecompartment previously filled.

The accuracy of the measurement depends quite largely upon the accuratecutting off of the compartments. I have, therefore, formed thepartitions G with portions d, which extend upward into close proximityto the lower end of the discharge nozzle F. This portion of thepartition is formed of thin sheet metal, and the nozzle F is ofcomparatively narrow cross section with the result, that the cutting offis quickly effected. It'is, however, essential to the operation of thedevice that a portion of the liquid received by one compartment must bepersubdivided by a series of partitions f which one point in the coapartment than cause a vertical discharge of the liquid into the drum.Without'some such device, the Velocity of the liquidenteringthe conduitE will cause it to shoot at an angle through the nozzle F, raising thelevel at one end of the compartment higher than at the opposite end, andalso agitate the surface of the liquid so as to make the measurementsomewhat inaccurate. With my improvement, the liquid is directedVertically downward from the inlet pipe E. A. still greater degree ofaccuracy is obtained if, in place of discharging the liquid directlyupon the surface of the liquid already in the compartment, means isprovided for directing the jet beneath the surface, avoiding toeproduction of waves. As shown in 4, the portions a of the partitions Ghave arranged upon opposite sides thereof supplementary partitions /L,which ettend downward beneath the level of the liquid in the compartmentat the time when the required overflow into the succeeding compartmentis ap- ,proaching and taking place, and are open at their lower ends.The e partitions are preferably interspaced with auxiliary overflowpassages 0, so that as the meter is approaching and receding from eachpoint of the cut-oil the liquid from the nozzle will pass downwardbetween the partitions and will distribute itself uniformly. Theoverflow is also distributed along the cut-off, so as to prevent ahigher level or the liquid at at another, and the nozzle F is dividedinto sections, the jets of which register only with the passages betweenthe partitions.

In the complete operation supposing one ,of the partitions G, Fig. 1, tohave its portions at in registration with the nozzle F. the compartmentY to the right of said partition will have been previously filled withliquid up to the level of the overflow chan- 'nels e, and liquid willhave also passed through these channels into the compartment X on theleft of the partition. l he discharge conduit J, for the partition G,will have its discharge end Z above the level of the channel 6, so thatno discharge 01 water from the compartment Y is pern'iitted until thedrum is further rotated. its further rotation is effected by thecontinued inlet of liquid through the nozzle F, which. passes eitherthrough the channel (a, or directly into the compartment X, disturbingthe balance and causing a movement in the direction indicated by thearrow. This moves the portion a, of the partition G, to

j the right of the nozzle F, cutting off further admission to thecompartment Y and further filling the compartment i. At the same time,the discharge end Z of the discharge conduit J is lowered and the liquidin the compartment Y is permitted to discharge, this action continuinguntil all the liquid in the compartment through.

By reason of the fact that the discharge conduits J are connected totheir respective compartments at a point inward from the periphery ofthe drum, :1 portion of the liquid in the compartment is trapped andtemporarily retained after the discharge end Z has passed the lowestpoint in rotation. During the further rotation ol the drum. due to thefilling of an adjacent comparlment, this trapped liquid is graduallydis-- charged by the chungi oi? the angle oil lhc section 0 of thepartition as the drum rotates, until. linally all the liquid isdischarged.

Lthvill be observed that by reason of the construction just tlez ribcdthe rotation oil "the drum is more uniform, and the tendency towardsrunning ahead of tho inccmiinr liquid is entirely avoided. Thus, it thedischarge conduit communicated with its compartinent at the periphery,alter once be ginning to discharge the action would be continued:mtomaticull, even it no more liouid were admitted to the drum.Moreover, the greater part. or the liquid in each compartment would bedischarged before the discharge aperture Z reaches the lowcsl point.Consequently, the angle of rotation through which the c unp:u'lmcnt iscompletely discharged would be c-zmlparativcly small. ll ith my improvedconstruction. the first part only of the discharge is due lo thelowering ol the peripheral aperture Z, while after this apcrt .re isbelow the level ol' the opposite end or the conduit J the lurlhcrdischarge can only he ell'cctcd by the adis discharged thercmission ofmore liquid to the ad acent compartment of the drum. The rotation of thedrum may be conununicatcd through any suitable gear train (not shown) tothe index wheels, which record the revolutions.

ll hat I claim as my invention is:

1. in a liquid meter. the combination of a revoluhle drum, an axialliquid inlet; par titions within said din dividing the same in o aplurality of compartments suctrssi vcly conm'iunicating with said inlet;pcriplalral discharg connections to each cmnpartmcnt leading bacl; to a,point angularly removed tl' refroi'n, said connections communicatingwith their respective compartments at points inward from the neriphcrywhereby a portion of the liquid is trapped and temporarily delayed rroindischarging.

2. in a liouid meter, the combination with a revoluble drum, of a liquidinlet ar angcd axially therein and discharging down ard, partitionsdividing said drum into a plurality of compai"':nents successivelyregistering with the discharge from said liquid inlet nozzle, each ofsaid partitions having an oil-set to extend the compartments uponopposite sides of the cut-oll' portion of the parl. l. i)

tition; and discharge conduits connected respectively to saidcompartmentsin the offset portion of said partition and extendingthrough the adjacent compartment to a point in the periphery. l

3. In a liquid meter, the combination with a revoluble drum, of a liquidinlet nozzle extending axially therein .and having a downward discharge;partitions within said drum dividing the same into a plurality ofcompartments successively registering with the discharge from saidnozzle, each of said partitions having a radially extending liquidcut-01f portion and an off-set on one side of said cut-ofl' formed byoppositely angular portions, and a discharge conduit connected to thepoint of intersection of said oppositely angular portions of thepartitions and extending therefrom through the adjacent compartment tothe periphery.

4:- In a liquid meter, the combination with a revoluble drum, of aseries of partitions dividing said drum into separate compartments, aliquid inlet nozzle arranged axially within the drum and having adownward discharge portion adjacent to the path of the inner edge ofsaid partitionswhereby the latter constitute liquid cut-offs, each ofsaid partitions having an aperture therein at a point further from theaxis than the cut-ott edge, and constituting an overflow from onecompartment to another.

5. In a liquid meter,-the combination with a revoluble drum, of a liquidinlet conduit extending axially therein and having a downwardly directeddischarge, of aseries of partitions dividing said drum intocoinpartments successively registering with the discharge from saidnozzle, and means for directing the liquid from said nozzle verticallydownward beneath the" level of the liquid in the compartment, for thepurpose described.

6. In a liquid meter, the combination'with a revoluble drum, of a seriesof partitions dividing said drum into separate compartments, a liquidinlet nozzle arranged axially within'the drum and having a downwarddischarge portion adjacent to the path of the inner edge of saidpartition whereby the latter constitutes a cut-0H, each of saidpartitions having a plurality of apertures distributed along the lengththereof and constituting overflow'passages which are further from theaxis than the cut-off.

7 In a liquid meter, the combination with a revoluble drum, of a liquidinlet conduit extending axially Within said drum and having downwardlydirected discharge jets, a series of partitions dividing said drum intocompartments successively registering with the discharge from saidnozzle, and an auxiliary partition adjacent to each of said partitionsforming a means for directing the liquid downward beneath the level inthe compartment when the latter is adjacent to the point of cut-oi 8. Ina liquid meter, the combination with a revoluble drum, of a liquid inletconduit extending axially therein and provided with aseries ordownwardly directed jets, a series of partitions dividing said drum intocompartments successively registering with the discharge from said jets,auxiliary partitions adjacent to the main partitions forming conduitsfor directing the liquid from the jets below the level of the liquid inthe compartment as the point of cut-ofi is ap proached said auxiliarypartitions having intermediate overflow passages for maintaining auniform level throughout the compartment. 7

9. A liquid meter comprising a revoluble drum, an axial liquid inlet,partitions di viding said drum into a series of compartmentssuccessively communicating with said inlet, and means for dischargingsaid conduits arranged to temporarily retain a portion of the liquidafter the outlet therefor has passed the lowest point in its travel.

10. A liquid meter comprising a revoluble drum, an axial liquid inlet,partitions dividing the drum into a plurality of compartmentssuccessively communicating with said inlet and discharge conduits at apoint inward from the periphery of the drum, for the purpose described.

11. A liquid meter comprising a revoluble drum, an axial liquid inlet,partitions dividing the drum into a plurality of compartmentssuccessively communicating with said inlet and a discharge conduit foreach compartment, said partitions and discharge eonduits beingconstructed to trap a portion of the liquid in each compartment, wherebyits discharge is temporarily delayed.

In testimony. whereof I affix my signature in presence of two witnesses.

EUGENE L. BARNES.

Witnesses:

, AMELIA WILLIAMS, 7 NELLLE KmsELLA.

